#9214: UNPACK support for sum types -------------------------------------+------------------------------------ Reporter: mojojojo | Owner: Type: feature request | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.8.2 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Unknown/Multiple Type of failure: None/Unknown | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: -------------------------------------+------------------------------------ Comment (by tibbe): It's even more complicated than just allocating the max needed by any of the unpacked sum type's constructor. The GC needs to know what the fields are in any given constructor to be able to GC correctly. I don't think this will be hard (that's why we haven't done it already). -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9214#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler